Canillo is one of the parishes of Andorra. Canillo is also the name of the main town of the parish. The parish is considered the religious center of Andorra with the Sanctuary and Chapel of Our Lady of Meritxell, patron saint of Andorra, and contains one of the best-preserved romanesque churches in the Pyrenees, Sant Joan de Caselles. It has a population of 4,826, as of 2011. Despite having a tourist vocation, the parish of Canillo still retains many livestock and agricultural traits.
The localities of Canillo parish include Soldeu, Bordes d'Envalira, El Tarter, Sant Pere, Ransol, Els Plans, El Vilar, l'Armiana, l'Aldosa, El Forn, Incles, Prats, Meritxell and Molleres. Unlike the rest of Andorra, Canillo is divided by veïnats (neighborhoods). Canillo Parish is Andorra's largest parish, at 121 square kilometers (47 sq mi).
Large natural places and areas in the parish include the Incles Valley, the Ransol Valley and the Montaup Valley. On the hiking trail of the Incles Valley is located the Estany de Juclà, the largest lake in Andorra, with 21.3 hectares (0.21 km2).
